JP2562404B2 - Floorboard for double floor. - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a floorboard for a double floor.

[0002]

2. Description of the Related Art Conventionally, a surface plate which is rigid by itself is used. Since a thick plate is used to maintain the rigidity or ribs are provided on the entire back surface, there are problems that the weight is increased and the cost is increased.

[0003]

SUMMARY OF THE INVENTION The present invention solves these problems,
It is an object of the present invention to provide a lightweight and low-cost product.

[0004]

To this end, the invention provides a strip-shaped support plate of rectangular height with at least two opposite edges, which are bent at a substantially right angle and have the same height . The support edge is provided with one or two or more gate-shaped openings continuous with the lower end, leaving predetermined portions such as both ends. In addition, a support having a height substantially equal to the height up to the back surface of the front plate is closely attached to the center back surface of the front plate.

[0005]

With this structure, the surface plate may be a thin plate alone, the periphery of which is reinforced by the bent support edge, and the center portion of which is reinforced by the back surface support. The face plate is inexpensive and lightweight.

[0006]

Embodiment 1 An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 2 shows the floorboard body 1. A support edge 11 of 4 cm is formed by bending the four sides of the surface plate 10 of a galvanized steel plate having a thickness of 2 mm downward at right angles.
Is attached. The face plate 10 is a square having a side of 30 cm. The support edge 11 is provided with two gate-shaped openings 12 except for both ends and the upper end. The size of the opening 12 is usually 5 to 8 cm in width, and the height is 3 cm except the upper end of 1 cm. The opening 12 communicates with the lower end 13 of the support edge 11.
It is desirable in terms of stability of the floorboard that the supporting edges adjacent at each corner are welded to each other or joined to each other by using a connecting tool.
It is not the four edges of the faceplate that form the support edge, but the relative edges.
It may have two sides. In this case, the other two sides
It is desirable to fold it at a right angle and attach a short support edge 11.
Good

FIG. 3 shows the support 2. Thickness 2
It is a semi-cylindrical body having a downward cross-sectional opening made of millimeter galvanized steel sheet. The support plate 20 on the upper surface is a square having a side of 10 cm, and both ends thereof are bent downward at right angles to form support legs 21. The support leg 21 is also provided with a single gate-shaped opening 12 like the support edge, but it is desirable in terms of strength to leave the upper end of about 1 cm. Both edges of the support plate 20 are also bent downward by 1 cm to form reinforcing edges 22. The height of the support body is a height that can be accommodated just below the floor plate body 1, and is about 38 mm, which is lower than the thickness of the surface plate.

Shown in FIG. 1 is a floorboard 3. The support body 2 is attached to the center of the back surface of the front surface plate 10 of the floor plate body 1 so as to have a similar shape. Support plate 20 on the upper surface of the support 2
There welded formed by a spot 熔 contact a portion occasional overlap of both in close contact with the back surface of the surface plate 10. In the case of construction, generally, the cushion sheet 41 is spread over the slab 4, and the floorboards 3 are spread and used. A double floor having a wiring space 5 is formed under the face plate 10.

The method of joining the surface plate and the support may be based on adhesion, mechanical caulking, screwing or the like instead of welding. It is also effective to attach a double-sided adhesive tape on the entire surface of the support plate 20 and attach it with a slight cushion made of a wide surface. Further, the steel plate need not be limited to a galvanized steel plate, and other plated products may be used as long as durability can be obtained,
You may give corrosion resistance by painting. Generally, a steel plate is most suitable as the surface plate, but the support may be formed integrally with a die-cast product of aluminum or an injection-molded product of high-strength plastic instead of a steel material.

The floorboard for a double floor according to the present invention has a dual structure of a floorboard main body and a support, and is therefore particularly convenient when wiring equipment is attached. As shown in FIG. 4, a circular hole having a diameter of 8 cm is formed in the overlapping portion of the surface plate 10 and the support plate 20 of the floor plate 3, the outlet 6 is dropped into the circular hole, and the periphery thereof is covered with a screw or the like. Fixed to.
Normally, if a hole for wiring equipment is made in a floorboard that does not have a double structure, the strength of that portion is extremely reduced. In the case of this invention, even if a hole is formed, the supporting legs of the supporting body around the hole support it, so there is no problem in strength.

Another advantage of the double structure is that if the floor plate main body and the supporting body are not joined, the floor plate main body is cut off at the time of construction of the border portion and It suffices to install the support at an appropriate location and join the two using a double-sided adhesive tape or the like. If the floorboard body is cut into very small pieces, the support may also be cut.

Further, as an example of using the support alone, by combining the supports installed at relatively large intervals under a flat steel plate having a high strength of about 3 mm, a large amount of material can be installed under the floor. Form the wiring space of
It is possible to deal with a place where a large amount of electric wires are concentrated and drawn into the room from the electric wire / piping space (EPS) of the building body.

In the case of the floorboard of the present invention, as shown in FIG. 5, a strip-shaped notch 13 is provided in the center of the support edge 11 of the floorboard main body 1 over the entire length in the vertical direction, and a tongue-shaped or semicircular shape continuous to the notch. The notch 13 is provided at the end of the surface plate 10.
It is convenient to use this notch to pull out wiring or the like from under the floor board. Since a support is attached to the central part,
Providing such notches does not affect the strength of the surface plate.

In the embodiment, the size of one side of the support is about one third of the one side of the surface plate.
If the support is placed in the center of the face plate in the same orientation, the face plate will be supported by vertical support edges or support legs of the support at points divided into thirds in each direction, Since the average support is obtained, the support efficiency is good. From this point of view, the size of one side of the support is preferably one third, but it is generally set to one half or one quarter.

[0015]

[Second Embodiment] The floorboard body has substantially the same construction as that of the first embodiment, and the height and the size of the surface plate are larger than those in the previous embodiment. A perimeter edge of a 2 mm thick galvanized steel face plate is bent downward at a right angle to attach a supporting edge of 5 cm. The face plate is a square measuring 45 cm on a side. The supporting edge shall be provided with two gate-shaped openings, except for both ends and the upper end. The size of the opening is usually 8 to 10 cm wide and 3 cm high, leaving an upper end of 2 cm. The opening opens at the lower end of the support edge.

FIG. 6 shows the support 2. Thickness 2
It is a semi-cylindrical body having a downward cross-sectional opening made of millimeter galvanized steel sheet. The support plate 20 on the upper surface has a long side of 30.
It is a rectangle with a centimeter and a short side of 10 centimeters, and the ends of both long sides are bent downward at right angles to form support legs 21. Similarly to the support edge, the support leg 21 is provided with two gate-shaped openings 12, but the upper end is left about 1 cm. A reinforcing bead 23 having a depth of 5 mm is provided on both sides of the short side of the support plate 20 over the entire width.
Is attached. The height of the support is just about 48 millimeters which is just below the floor plate body and is lower than the floor plate body by the thickness of the face plate.

The floor plate 3 is shown in FIG. At the center of the back surface of the front plate 10 of the floor plate body 1, two support bodies 2 are attached.
It is formed by attaching 0 cm intervals and attaching the longitudinal directions in parallel. The support plate 20 on the upper surface of the support 2 is the front plate 1.
It is formed by welding spots and spots where the two overlap with each other while being in close contact with the back surface of No. 0. The construction method is the same as in the first embodiment.

[0018]

[Third Embodiment] The floorboard main body has the same structure as that of the second embodiment. The support consists of a 2 mm thick galvanized steel sheet,
It has an isosceles triangular support plate with a right-angled edge of 30 cm. Support legs similar to the support of the previous embodiment are provided around the three sides.

FIG. 8 shows the floor plate 3. The support 2 composed of two right-angled triangles is made to face each other with the opposite sides of the right angle spaced apart by a distance of 1 cm, and the front plate 1 of the floor plate body 1 is placed.
It is formed by being attached to the central part of the back surface of 0. The method of joining the floor plate main body and the support and the construction method are the same as in Examples 1 and 2. When formed in this way, the floor plate 3 can be bent to some extent along a diagonal line without a support,
Even if the slab has some unevenness, the floorboard can be adapted to the unevenness.

The shape of the support 2 is not limited to that of the embodiment, and for example, as shown in FIG. 9, a strip-shaped steel material having the same width as the height of the back surface of the face plate is bent in a U-shape to be continuous. It is also possible that three support legs 21 are connected. Each support leg may be provided with a gate-shaped opening.

Further, as shown in FIG. 10, the support 2 is provided with support edges 11 which are bent downward at four peripheral edges of the support plate 10, and at least both ends and the top of the support edge 11 are left, and the support edge 11 is provided at the bottom. It may be a table-like body provided with a continuous gate-shaped opening 12. The opening may be omitted.

[0022]

Since the present invention is constructed in this manner, it has the following features. Since the surface plate of the floor plate is composed of a thin plate, it is possible to secure a large space under the floor. The periphery of the floorboard main body is supported by vertical support edges, and the central portion of the floorboard is supported by a support including vertical support legs, so that important points are effectively reinforced. Both are supported by vertical members,
Even if the floor plate is made of a thin plate, it can sufficiently withstand the load from above.

Since the floorboard of the present invention has a simple shape in which the excess meat is removed, the production is extremely simple.
Further, since the whole can be formed of a thin steel plate, die cutting, bending, etc. can be performed by simple press working, so that it is possible to provide an inexpensive floor board which is very cheap in terms of materials and processing.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an example of a floor board.

FIG. 2 is a perspective view showing an example of a floorboard main body.

FIG. 3 is a perspective view showing an example of a support.

FIG. 4 is a side sectional view of a floorboard to which wiring equipment is attached.

FIG. 5 is a perspective view showing another example of the floor board.

FIG. 6 is a perspective view showing another example of a support.

FIG. 7 is a plan perspective view showing another example of the floor board.

FIG. 8 is a plan perspective view showing another example of the floor board.

FIG. 9 is a perspective view showing another example of the support.

FIG. 10 is a perspective view showing another example of a support.

[Explanation of symbols]

 1 Floor Board Main Body 10 Surface Plate 11 Support Edge 12 Opening 13 Notch 2 Support 20 Support Plate 21 Support Leg 22 Reinforcing Edge 23 Bead 3 Floor Board 4 Slab 41 Cushion Sheet 5 Wiring Space 6 Outlet

Claims (6)

(57) [Claims] 1. At least a rectangular surface plate made of a thin plate
Strip supporting edge of a folded state at a substantially right angle is formed downward in two peripheral opposite, Tokoro etc. both ends to the support edge
One or two or more continuous gate-shaped openings are attached to the lower end, leaving a fixed location, and the support having a height approximately equal to the height to the back surface of the face plate is the back surface of the center part of the face plate. A floorboard for double floors, characterized by being closely attached to. 2. The floor board for a double floor according to claim 1, wherein the support is a semi-cylindrical body having a U-shaped cross-section that opens downward. 3. The support body is a U-shaped semi-cylindrical body having a downward cross-sectional shape, and a reinforcing bead in the transverse direction or a reinforcing edge having a narrow width downward at both ends of the opening. The floorboard for a double floor according to claim 2, wherein the floorboard is provided. 4. The support according to claim 1, wherein the support is an inverted box-like body in which support legs, which are bent downward at a substantially right angle, are provided around four sides of a rectangular thin plate. Floorboard for heavy floors. 5. A semi-cylindrical or inverted box-shaped support body is provided on its side surface with a gate-shaped opening continuous to the lower end, leaving both ends and the upper end. The floor board for double floors according to claim 4. 6. One side of the support is one third of one side of the face plate.
The floorboard for a double floor according to claim 1, which has a front and rear size.